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arXiv 0907.1544quant-ph
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连续马尔可夫量子信道的遗忘性

Forgetfulness of continuous Markovian quantum channels

Cosmo Lupo, Laleh Memarzadeh, Stefano Mancini

摘要:

在离散量子记忆通道中使用的遗忘概念被稍微削弱,以便应用于连续通道的情况。这是在具有马尔可夫噪声的量子存储信道的背景下完成的。作为一个案例研究,我们将弱遗忘的概念应用于具有加性噪声的玻色子记忆通道。一个合适的编码和解码酉变换允许我们解开记忆的影响,因此信道容量可以使用来自无记忆设置的已知结果来计算。

英文摘要:

The notion of forgetfulness, used in discrete quantum memory channels, is slightly weakened in order to be applied to the case of continuous channels. This is done in the context of quantum memory channels with Markovian noise. As a case study, we apply the notion of weak-forgetfulness to a bosonic memory channel with additive noise. A suitable encoding and decoding unitary transformation allows us to unravel the effects of the memory, hence the channel capacities can be computed using known results from the memoryless setting.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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